Performing cross-domain thermal control in a Processor

Processor comprising processor core associated with first domain 125, non-core circuit associated with second domain 130/135, plurality of thermal sensors, at least one associated with each domain, and a power controller 140 coupled to the domains and causing a reduction in frequency of the first do...

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Bibliographic Details
Main Authors Shaun M Conrad, Jay D Schwartz, Jeremy J Shrall, Xiuting C Man, Stephen H Gunther, Michael N Derr, Avinash N Ananthakrishnan
Format Patent
LanguageEnglish
Published 06.09.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Processor comprising processor core associated with first domain 125, non-core circuit associated with second domain 130/135, plurality of thermal sensors, at least one associated with each domain, and a power controller 140 coupled to the domains and causing a reduction in frequency of the first domain in response to a temperature of the second domain exceeding a threshold. The processor may comprise a graphics processing unit. The processor may further comprise a digital signal processor, a shared cache memory or a PCIE interface. There may be a plurality of cores associated with the first domain, at least some of which may operate at an independent voltage. The power controller may cause the domains to operate at different voltages. Also a system comprising the processor coupled to memory and storage, which may further comprise at least one communication device or an input/output device coupled to the processor. The system may comprise a mobile device. Also provided is a method for changing a power state of at least one processor core.
Bibliography:Application Number: GB20170000131